A VOICE SWITCH FOR HANDS FREE COMMUNICATION APPARATUS,申请号GB19810007448-传众专利搜索

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发明名称	A VOICE SWITCH FOR HANDS FREE COMMUNICATION APPARATUS
摘要
申请公布号	GB2076264(A)	申请公布日期	1981.11.25
申请号	GB19810007448	申请日期	1981.03.10
申请人	NORTHERN TELECOM LTD	发明人
分类号	H04M9/10;(IPC1-7):H04B3/20	主分类号	H04M9/10
代理机构		代理人
主权项
地址

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